Home / 121,756.64-182,635.02-79,901.51

Finding the Fourth Proportional to 121,756.64, 182,635.02 and 79,901.51

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Solution

The fourth proportional to 121,756.64, 182,635.02 and 79,901.51 is: 119,852.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,756.64 : 182,635.02 = 79,901.51 : x
  2. Step 2: Convert to fraction form
    121,756.64/182,635.02 = 79,901.51/x
  3. Step 3: Cross multiply
    121,756.64x = 182,635.02 × 79,901.51
  4. Step 4: Simplify right side
    121,756.64x = 14,592,812,963.71
  5. Step 5: Solve for x
    x = 14,592,812,963.71/121,756.64
  6. Step 6: Final answer
    x = 119,852.30

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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.