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Finding the Fourth Proportional to 149,339.62, 223,931.66 and 70,432.66

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Solution

The fourth proportional to 149,339.62, 223,931.66 and 70,432.66 is: 105,612.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,339.62 : 223,931.66 = 70,432.66 : x
  2. Step 2: Convert to fraction form
    149,339.62/223,931.66 = 70,432.66/x
  3. Step 3: Cross multiply
    149,339.62x = 223,931.66 × 70,432.66
  4. Step 4: Simplify right side
    149,339.62x = 15,772,102,119.85
  5. Step 5: Solve for x
    x = 15,772,102,119.85/149,339.62
  6. Step 6: Final answer
    x = 105,612.31

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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.