Home / 121,070.96-181,607.24-42,186.68

Finding the Fourth Proportional to 121,070.96, 181,607.24 and 42,186.68

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Solution

The fourth proportional to 121,070.96, 181,607.24 and 42,186.68 is: 63,280.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,070.96 : 181,607.24 = 42,186.68 : x
  2. Step 2: Convert to fraction form
    121,070.96/181,607.24 = 42,186.68/x
  3. Step 3: Cross multiply
    121,070.96x = 181,607.24 × 42,186.68
  4. Step 4: Simplify right side
    121,070.96x = 7,661,406,519.56
  5. Step 5: Solve for x
    x = 7,661,406,519.56/121,070.96
  6. Step 6: Final answer
    x = 63,280.30

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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.