Home / 145,769.04-201,158.52-81,236.85

Finding the Fourth Proportional to 145,769.04, 201,158.52 and 81,236.85

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Solution

The fourth proportional to 145,769.04, 201,158.52 and 81,236.85 is: 112,105.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,769.04 : 201,158.52 = 81,236.85 : x
  2. Step 2: Convert to fraction form
    145,769.04/201,158.52 = 81,236.85/x
  3. Step 3: Cross multiply
    145,769.04x = 201,158.52 × 81,236.85
  4. Step 4: Simplify right side
    145,769.04x = 16,341,484,515.46
  5. Step 5: Solve for x
    x = 16,341,484,515.46/145,769.04
  6. Step 6: Final answer
    x = 112,105.32

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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.