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Finding the Fourth Proportional to 158,641.60, 237,904.80 and 79,729.60

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Solution

The fourth proportional to 158,641.60, 237,904.80 and 79,729.60 is: 119,565.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,641.60 : 237,904.80 = 79,729.60 : x
  2. Step 2: Convert to fraction form
    158,641.60/237,904.80 = 79,729.60/x
  3. Step 3: Cross multiply
    158,641.60x = 237,904.80 × 79,729.60
  4. Step 4: Simplify right side
    158,641.60x = 18,968,054,542.08
  5. Step 5: Solve for x
    x = 18,968,054,542.08/158,641.60
  6. Step 6: Final answer
    x = 119,565.45

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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.