Home / 98,903.08-136,495.02-56,475.28

Finding the Fourth Proportional to 98,903.08, 136,495.02 and 56,475.28

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Solution

The fourth proportional to 98,903.08, 136,495.02 and 56,475.28 is: 77,940.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,903.08 : 136,495.02 = 56,475.28 : x
  2. Step 2: Convert to fraction form
    98,903.08/136,495.02 = 56,475.28/x
  3. Step 3: Cross multiply
    98,903.08x = 136,495.02 × 56,475.28
  4. Step 4: Simplify right side
    98,903.08x = 7,708,594,473.11
  5. Step 5: Solve for x
    x = 7,708,594,473.11/98,903.08
  6. Step 6: Final answer
    x = 77,940.89

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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.