Home / 158,711.04-219,123.84-98,345.76

Finding the Fourth Proportional to 158,711.04, 219,123.84 and 98,345.76

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Solution

The fourth proportional to 158,711.04, 219,123.84 and 98,345.76 is: 135,780.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,711.04 : 219,123.84 = 98,345.76 : x
  2. Step 2: Convert to fraction form
    158,711.04/219,123.84 = 98,345.76/x
  3. Step 3: Cross multiply
    158,711.04x = 219,123.84 × 98,345.76
  4. Step 4: Simplify right side
    158,711.04x = 21,549,900,578.92
  5. Step 5: Solve for x
    x = 21,549,900,578.92/158,711.04
  6. Step 6: Final answer
    x = 135,780.73

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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.