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Finding the Fourth Proportional to 142,915.86, 214,373.79 and 49,370.58

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Solution

The fourth proportional to 142,915.86, 214,373.79 and 49,370.58 is: 74,055.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,915.86 : 214,373.79 = 49,370.58 : x
  2. Step 2: Convert to fraction form
    142,915.86/214,373.79 = 49,370.58/x
  3. Step 3: Cross multiply
    142,915.86x = 214,373.79 × 49,370.58
  4. Step 4: Simplify right side
    142,915.86x = 10,583,758,349.10
  5. Step 5: Solve for x
    x = 10,583,758,349.10/142,915.86
  6. Step 6: Final answer
    x = 74,055.87

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1.5x scale

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.