Home / 145,130.06-217,639.17-56,371.88

Finding the Fourth Proportional to 145,130.06, 217,639.17 and 56,371.88

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Solution

The fourth proportional to 145,130.06, 217,639.17 and 56,371.88 is: 84,536.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,130.06 : 217,639.17 = 56,371.88 : x
  2. Step 2: Convert to fraction form
    145,130.06/217,639.17 = 56,371.88/x
  3. Step 3: Cross multiply
    145,130.06x = 217,639.17 × 56,371.88
  4. Step 4: Simplify right side
    145,130.06x = 12,268,729,718.64
  5. Step 5: Solve for x
    x = 12,268,729,718.64/145,130.06
  6. Step 6: Final answer
    x = 84,536.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.