Home / 121,989.02-182,938.02-42,004.40

Finding the Fourth Proportional to 121,989.02, 182,938.02 and 42,004.40

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Solution

The fourth proportional to 121,989.02, 182,938.02 and 42,004.40 is: 62,990.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,989.02 : 182,938.02 = 42,004.40 : x
  2. Step 2: Convert to fraction form
    121,989.02/182,938.02 = 42,004.40/x
  3. Step 3: Cross multiply
    121,989.02x = 182,938.02 × 42,004.40
  4. Step 4: Simplify right side
    121,989.02x = 7,684,201,767.29
  5. Step 5: Solve for x
    x = 7,684,201,767.29/121,989.02
  6. Step 6: Final answer
    x = 62,990.93

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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.