Home / 114,710.40-158,236.20-72,195.12

Finding the Fourth Proportional to 114,710.40, 158,236.20 and 72,195.12

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Solution

The fourth proportional to 114,710.40, 158,236.20 and 72,195.12 is: 99,588.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,710.40 : 158,236.20 = 72,195.12 : x
  2. Step 2: Convert to fraction form
    114,710.40/158,236.20 = 72,195.12/x
  3. Step 3: Cross multiply
    114,710.40x = 158,236.20 × 72,195.12
  4. Step 4: Simplify right side
    114,710.40x = 11,423,881,447.34
  5. Step 5: Solve for x
    x = 11,423,881,447.34/114,710.40
  6. Step 6: Final answer
    x = 99,588.89

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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.