Home / 145,258.50-217,900.29-40,077.47

Finding the Fourth Proportional to 145,258.50, 217,900.29 and 40,077.47

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Solution

The fourth proportional to 145,258.50, 217,900.29 and 40,077.47 is: 60,119.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,258.50 : 217,900.29 = 40,077.47 : x
  2. Step 2: Convert to fraction form
    145,258.50/217,900.29 = 40,077.47/x
  3. Step 3: Cross multiply
    145,258.50x = 217,900.29 × 40,077.47
  4. Step 4: Simplify right side
    145,258.50x = 8,732,891,245.96
  5. Step 5: Solve for x
    x = 8,732,891,245.96/145,258.50
  6. Step 6: Final answer
    x = 60,119.66

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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.