Home / 100,854.06-139,117.20-62,098.12

Finding the Fourth Proportional to 100,854.06, 139,117.20 and 62,098.12

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Solution

The fourth proportional to 100,854.06, 139,117.20 and 62,098.12 is: 85,657.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,854.06 : 139,117.20 = 62,098.12 : x
  2. Step 2: Convert to fraction form
    100,854.06/139,117.20 = 62,098.12/x
  3. Step 3: Cross multiply
    100,854.06x = 139,117.20 × 62,098.12
  4. Step 4: Simplify right side
    100,854.06x = 8,638,916,579.66
  5. Step 5: Solve for x
    x = 8,638,916,579.66/100,854.06
  6. Step 6: Final answer
    x = 85,657.60

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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.