Home / 121,070.25-181,484.87-57,816.43

Finding the Fourth Proportional to 121,070.25, 181,484.87 and 57,816.43

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Solution

The fourth proportional to 121,070.25, 181,484.87 and 57,816.43 is: 86,667.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,070.25 : 181,484.87 = 57,816.43 : x
  2. Step 2: Convert to fraction form
    121,070.25/181,484.87 = 57,816.43/x
  3. Step 3: Cross multiply
    121,070.25x = 181,484.87 × 57,816.43
  4. Step 4: Simplify right side
    121,070.25x = 10,492,807,282.41
  5. Step 5: Solve for x
    x = 10,492,807,282.41/121,070.25
  6. Step 6: Final answer
    x = 86,667.10

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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.