Home / 147,079.02-220,618.50-87,931.62

Finding the Fourth Proportional to 147,079.02, 220,618.50 and 87,931.62

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Solution

The fourth proportional to 147,079.02, 220,618.50 and 87,931.62 is: 131,897.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,079.02 : 220,618.50 = 87,931.62 : x
  2. Step 2: Convert to fraction form
    147,079.02/220,618.50 = 87,931.62/x
  3. Step 3: Cross multiply
    147,079.02x = 220,618.50 × 87,931.62
  4. Step 4: Simplify right side
    147,079.02x = 19,399,342,106.97
  5. Step 5: Solve for x
    x = 19,399,342,106.97/147,079.02
  6. Step 6: Final answer
    x = 131,897.41

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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.