Home / 82,877.10-124,315.65-77,174.70

Finding the Fourth Proportional to 82,877.10, 124,315.65 and 77,174.70

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Solution

The fourth proportional to 82,877.10, 124,315.65 and 77,174.70 is: 115,762.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,877.10 : 124,315.65 = 77,174.70 : x
  2. Step 2: Convert to fraction form
    82,877.10/124,315.65 = 77,174.70/x
  3. Step 3: Cross multiply
    82,877.10x = 124,315.65 × 77,174.70
  4. Step 4: Simplify right side
    82,877.10x = 9,594,022,994.06
  5. Step 5: Solve for x
    x = 9,594,022,994.06/82,877.10
  6. Step 6: Final answer
    x = 115,762.05

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1.5x scale

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.