Home / 119,478.02-164,878.40-65,761.88

Finding the Fourth Proportional to 119,478.02, 164,878.40 and 65,761.88

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Solution

The fourth proportional to 119,478.02, 164,878.40 and 65,761.88 is: 90,750.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,478.02 : 164,878.40 = 65,761.88 : x
  2. Step 2: Convert to fraction form
    119,478.02/164,878.40 = 65,761.88/x
  3. Step 3: Cross multiply
    119,478.02x = 164,878.40 × 65,761.88
  4. Step 4: Simplify right side
    119,478.02x = 10,842,713,555.39
  5. Step 5: Solve for x
    x = 10,842,713,555.39/119,478.02
  6. Step 6: Final answer
    x = 90,750.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.