Home / 108,359.43-149,547.27-62,420.66

Finding the Fourth Proportional to 108,359.43, 149,547.27 and 62,420.66

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Solution

The fourth proportional to 108,359.43, 149,547.27 and 62,420.66 is: 86,146.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,359.43 : 149,547.27 = 62,420.66 : x
  2. Step 2: Convert to fraction form
    108,359.43/149,547.27 = 62,420.66/x
  3. Step 3: Cross multiply
    108,359.43x = 149,547.27 × 62,420.66
  4. Step 4: Simplify right side
    108,359.43x = 9,334,838,546.86
  5. Step 5: Solve for x
    x = 9,334,838,546.86/108,359.43
  6. Step 6: Final answer
    x = 86,146.99

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1.5x scale

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.