Home / 159,030.14-219,373.52-100,780.20

Finding the Fourth Proportional to 159,030.14, 219,373.52 and 100,780.20

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Solution

The fourth proportional to 159,030.14, 219,373.52 and 100,780.20 is: 139,020.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,030.14 : 219,373.52 = 100,780.20 : x
  2. Step 2: Convert to fraction form
    159,030.14/219,373.52 = 100,780.20/x
  3. Step 3: Cross multiply
    159,030.14x = 219,373.52 × 100,780.20
  4. Step 4: Simplify right side
    159,030.14x = 22,108,506,716.40
  5. Step 5: Solve for x
    x = 22,108,506,716.40/159,030.14
  6. Step 6: Final answer
    x = 139,020.86

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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.