Home / 107,143.29-147,755.16-64,115.46

Finding the Fourth Proportional to 107,143.29, 147,755.16 and 64,115.46

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Solution

The fourth proportional to 107,143.29, 147,755.16 and 64,115.46 is: 88,417.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,143.29 : 147,755.16 = 64,115.46 : x
  2. Step 2: Convert to fraction form
    107,143.29/147,755.16 = 64,115.46/x
  3. Step 3: Cross multiply
    107,143.29x = 147,755.16 × 64,115.46
  4. Step 4: Simplify right side
    107,143.29x = 9,473,390,050.77
  5. Step 5: Solve for x
    x = 9,473,390,050.77/107,143.29
  6. Step 6: Final answer
    x = 88,417.95

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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.