Home / 159,800.04-220,603.87-99,390.17

Finding the Fourth Proportional to 159,800.04, 220,603.87 and 99,390.17

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Solution

The fourth proportional to 159,800.04, 220,603.87 and 99,390.17 is: 137,208.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,800.04 : 220,603.87 = 99,390.17 : x
  2. Step 2: Convert to fraction form
    159,800.04/220,603.87 = 99,390.17/x
  3. Step 3: Cross multiply
    159,800.04x = 220,603.87 × 99,390.17
  4. Step 4: Simplify right side
    159,800.04x = 21,925,856,817.71
  5. Step 5: Solve for x
    x = 21,925,856,817.71/159,800.04
  6. Step 6: Final answer
    x = 137,208.08

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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.