Home / 122,870.28-184,349.76-42,920.04

Finding the Fourth Proportional to 122,870.28, 184,349.76 and 42,920.04

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Solution

The fourth proportional to 122,870.28, 184,349.76 and 42,920.04 is: 64,395.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,870.28 : 184,349.76 = 42,920.04 : x
  2. Step 2: Convert to fraction form
    122,870.28/184,349.76 = 42,920.04/x
  3. Step 3: Cross multiply
    122,870.28x = 184,349.76 × 42,920.04
  4. Step 4: Simplify right side
    122,870.28x = 7,912,299,073.19
  5. Step 5: Solve for x
    x = 7,912,299,073.19/122,870.28
  6. Step 6: Final answer
    x = 64,395.55

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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.