Home / 147,530.50-220,922.05-91,480.08

Finding the Fourth Proportional to 147,530.50, 220,922.05 and 91,480.08

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Solution

The fourth proportional to 147,530.50, 220,922.05 and 91,480.08 is: 136,988.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,530.50 : 220,922.05 = 91,480.08 : x
  2. Step 2: Convert to fraction form
    147,530.50/220,922.05 = 91,480.08/x
  3. Step 3: Cross multiply
    147,530.50x = 220,922.05 × 91,480.08
  4. Step 4: Simplify right side
    147,530.50x = 20,209,966,336.36
  5. Step 5: Solve for x
    x = 20,209,966,336.36/147,530.50
  6. Step 6: Final answer
    x = 136,988.40

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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.