Home / 90,709.04-135,377.56-88,347.08

Finding the Fourth Proportional to 90,709.04, 135,377.56 and 88,347.08

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Solution

The fourth proportional to 90,709.04, 135,377.56 and 88,347.08 is: 131,852.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,709.04 : 135,377.56 = 88,347.08 : x
  2. Step 2: Convert to fraction form
    90,709.04/135,377.56 = 88,347.08/x
  3. Step 3: Cross multiply
    90,709.04x = 135,377.56 × 88,347.08
  4. Step 4: Simplify right side
    90,709.04x = 11,960,212,123.52
  5. Step 5: Solve for x
    x = 11,960,212,123.52/90,709.04
  6. Step 6: Final answer
    x = 131,852.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.