Home / 119,139.56-178,437.16-56,853.80

Finding the Fourth Proportional to 119,139.56, 178,437.16 and 56,853.80

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Solution

The fourth proportional to 119,139.56, 178,437.16 and 56,853.80 is: 85,150.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,139.56 : 178,437.16 = 56,853.80 : x
  2. Step 2: Convert to fraction form
    119,139.56/178,437.16 = 56,853.80/x
  3. Step 3: Cross multiply
    119,139.56x = 178,437.16 × 56,853.80
  4. Step 4: Simplify right side
    119,139.56x = 10,144,830,607.21
  5. Step 5: Solve for x
    x = 10,144,830,607.21/119,139.56
  6. Step 6: Final answer
    x = 85,150.81

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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.