Home / 145,231.80-217,909.74-70,407.24

Finding the Fourth Proportional to 145,231.80, 217,909.74 and 70,407.24

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Solution

The fourth proportional to 145,231.80, 217,909.74 and 70,407.24 is: 105,640.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,231.80 : 217,909.74 = 70,407.24 : x
  2. Step 2: Convert to fraction form
    145,231.80/217,909.74 = 70,407.24/x
  3. Step 3: Cross multiply
    145,231.80x = 217,909.74 × 70,407.24
  4. Step 4: Simplify right side
    145,231.80x = 15,342,423,362.52
  5. Step 5: Solve for x
    x = 15,342,423,362.52/145,231.80
  6. Step 6: Final answer
    x = 105,640.94

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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.