Home / 102,187.88-141,017.15-56,864.13

Finding the Fourth Proportional to 102,187.88, 141,017.15 and 56,864.13

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Solution

The fourth proportional to 102,187.88, 141,017.15 and 56,864.13 is: 78,471.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,187.88 : 141,017.15 = 56,864.13 : x
  2. Step 2: Convert to fraction form
    102,187.88/141,017.15 = 56,864.13/x
  3. Step 3: Cross multiply
    102,187.88x = 141,017.15 × 56,864.13
  4. Step 4: Simplify right side
    102,187.88x = 8,018,817,163.18
  5. Step 5: Solve for x
    x = 8,018,817,163.18/102,187.88
  6. Step 6: Final answer
    x = 78,471.31

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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.