Home / 102,643.30-153,964.95-97,831.90

Finding the Fourth Proportional to 102,643.30, 153,964.95 and 97,831.90

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Solution

The fourth proportional to 102,643.30, 153,964.95 and 97,831.90 is: 146,747.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,643.30 : 153,964.95 = 97,831.90 : x
  2. Step 2: Convert to fraction form
    102,643.30/153,964.95 = 97,831.90/x
  3. Step 3: Cross multiply
    102,643.30x = 153,964.95 × 97,831.90
  4. Step 4: Simplify right side
    102,643.30x = 15,062,683,591.91
  5. Step 5: Solve for x
    x = 15,062,683,591.91/102,643.30
  6. Step 6: Final answer
    x = 146,747.85

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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.