Home / 153,043.70-229,565.55-90,835.70

Finding the Fourth Proportional to 153,043.70, 229,565.55 and 90,835.70

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Solution

The fourth proportional to 153,043.70, 229,565.55 and 90,835.70 is: 136,253.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,043.70 : 229,565.55 = 90,835.70 : x
  2. Step 2: Convert to fraction form
    153,043.70/229,565.55 = 90,835.70/x
  3. Step 3: Cross multiply
    153,043.70x = 229,565.55 × 90,835.70
  4. Step 4: Simplify right side
    153,043.70x = 20,852,747,430.14
  5. Step 5: Solve for x
    x = 20,852,747,430.14/153,043.70
  6. Step 6: Final answer
    x = 136,253.55

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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.