Home / 112,503.94-155,249.06-61,507.20

Finding the Fourth Proportional to 112,503.94, 155,249.06 and 61,507.20

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Solution

The fourth proportional to 112,503.94, 155,249.06 and 61,507.20 is: 84,876.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,503.94 : 155,249.06 = 61,507.20 : x
  2. Step 2: Convert to fraction form
    112,503.94/155,249.06 = 61,507.20/x
  3. Step 3: Cross multiply
    112,503.94x = 155,249.06 × 61,507.20
  4. Step 4: Simplify right side
    112,503.94x = 9,548,934,384.60
  5. Step 5: Solve for x
    x = 9,548,934,384.60/112,503.94
  6. Step 6: Final answer
    x = 84,876.45

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1.5x scale

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.