Home / 121,349.79-181,985.07-40,275.03

Finding the Fourth Proportional to 121,349.79, 181,985.07 and 40,275.03

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Solution

The fourth proportional to 121,349.79, 181,985.07 and 40,275.03 is: 60,399.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,349.79 : 181,985.07 = 40,275.03 : x
  2. Step 2: Convert to fraction form
    121,349.79/181,985.07 = 40,275.03/x
  3. Step 3: Cross multiply
    121,349.79x = 181,985.07 × 40,275.03
  4. Step 4: Simplify right side
    121,349.79x = 7,329,454,153.80
  5. Step 5: Solve for x
    x = 7,329,454,153.80/121,349.79
  6. Step 6: Final answer
    x = 60,399.40

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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.