Home / 77,666.85-116,329.55-64,187.10

Finding the Fourth Proportional to 77,666.85, 116,329.55 and 64,187.10

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Solution

The fourth proportional to 77,666.85, 116,329.55 and 64,187.10 is: 96,139.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,666.85 : 116,329.55 = 64,187.10 : x
  2. Step 2: Convert to fraction form
    77,666.85/116,329.55 = 64,187.10/x
  3. Step 3: Cross multiply
    77,666.85x = 116,329.55 × 64,187.10
  4. Step 4: Simplify right side
    77,666.85x = 7,466,856,137.87
  5. Step 5: Solve for x
    x = 7,466,856,137.87/77,666.85
  6. Step 6: Final answer
    x = 96,139.55

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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.