Home / 92,142.38-138,069.58-64,117.20

Finding the Fourth Proportional to 92,142.38, 138,069.58 and 64,117.20

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Solution

The fourth proportional to 92,142.38, 138,069.58 and 64,117.20 is: 96,075.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,142.38 : 138,069.58 = 64,117.20 : x
  2. Step 2: Convert to fraction form
    92,142.38/138,069.58 = 64,117.20/x
  3. Step 3: Cross multiply
    92,142.38x = 138,069.58 × 64,117.20
  4. Step 4: Simplify right side
    92,142.38x = 8,852,634,874.78
  5. Step 5: Solve for x
    x = 8,852,634,874.78/92,142.38
  6. Step 6: Final answer
    x = 96,075.60

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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.