Home / 137,418,172.08-189,639,433.08-75,541,118.64

Finding the Fourth Proportional to 137,418,172.08, 189,639,433.08 and 75,541,118.64

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Solution

The fourth proportional to 137,418,172.08, 189,639,433.08 and 75,541,118.64 is: 104,248,038.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,418,172.08 : 189,639,433.08 = 75,541,118.64 : x
  2. Step 2: Convert to fraction form
    137,418,172.08/189,639,433.08 = 75,541,118.64/x
  3. Step 3: Cross multiply
    137,418,172.08x = 189,639,433.08 × 75,541,118.64
  4. Step 4: Simplify right side
    137,418,172.08x = 14,325,574,913,118,622
  5. Step 5: Solve for x
    x = 14,325,574,913,118,622/137,418,172.08
  6. Step 6: Final answer
    x = 104,248,038.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.