Home / 151,912.01-209,632.20-87,376.35

Finding the Fourth Proportional to 151,912.01, 209,632.20 and 87,376.35

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Solution

The fourth proportional to 151,912.01, 209,632.20 and 87,376.35 is: 120,575.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,912.01 : 209,632.20 = 87,376.35 : x
  2. Step 2: Convert to fraction form
    151,912.01/209,632.20 = 87,376.35/x
  3. Step 3: Cross multiply
    151,912.01x = 209,632.20 × 87,376.35
  4. Step 4: Simplify right side
    151,912.01x = 18,316,896,478.47
  5. Step 5: Solve for x
    x = 18,316,896,478.47/151,912.01
  6. Step 6: Final answer
    x = 120,575.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.