Home / 147,901.90-221,701.65-72,906.70

Finding the Fourth Proportional to 147,901.90, 221,701.65 and 72,906.70

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Solution

The fourth proportional to 147,901.90, 221,701.65 and 72,906.70 is: 109,285.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,901.90 : 221,701.65 = 72,906.70 : x
  2. Step 2: Convert to fraction form
    147,901.90/221,701.65 = 72,906.70/x
  3. Step 3: Cross multiply
    147,901.90x = 221,701.65 × 72,906.70
  4. Step 4: Simplify right side
    147,901.90x = 16,163,535,686.06
  5. Step 5: Solve for x
    x = 16,163,535,686.06/147,901.90
  6. Step 6: Final answer
    x = 109,285.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.