Home / 90,527.04-136,011.96-85,491.45

Finding the Fourth Proportional to 90,527.04, 136,011.96 and 85,491.45

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Solution

The fourth proportional to 90,527.04, 136,011.96 and 85,491.45 is: 128,446.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,527.04 : 136,011.96 = 85,491.45 : x
  2. Step 2: Convert to fraction form
    90,527.04/136,011.96 = 85,491.45/x
  3. Step 3: Cross multiply
    90,527.04x = 136,011.96 × 85,491.45
  4. Step 4: Simplify right side
    90,527.04x = 11,627,859,677.74
  5. Step 5: Solve for x
    x = 11,627,859,677.74/90,527.04
  6. Step 6: Final answer
    x = 128,446.26

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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.