Home / 121,197.08-181,878.65-42,311.30

Finding the Fourth Proportional to 121,197.08, 181,878.65 and 42,311.30

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Solution

The fourth proportional to 121,197.08, 181,878.65 and 42,311.30 is: 63,495.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,197.08 : 181,878.65 = 42,311.30 : x
  2. Step 2: Convert to fraction form
    121,197.08/181,878.65 = 42,311.30/x
  3. Step 3: Cross multiply
    121,197.08x = 181,878.65 × 42,311.30
  4. Step 4: Simplify right side
    121,197.08x = 7,695,522,123.75
  5. Step 5: Solve for x
    x = 7,695,522,123.75/121,197.08
  6. Step 6: Final answer
    x = 63,495.94

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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.