Home / 153,140.32-229,727.76-70,012

Finding the Fourth Proportional to 153,140.32, 229,727.76 and 70,012

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Solution

The fourth proportional to 153,140.32, 229,727.76 and 70,012 is: 105,025.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,140.32 : 229,727.76 = 70,012 : x
  2. Step 2: Convert to fraction form
    153,140.32/229,727.76 = 70,012/x
  3. Step 3: Cross multiply
    153,140.32x = 229,727.76 × 70,012
  4. Step 4: Simplify right side
    153,140.32x = 16,083,699,933.12
  5. Step 5: Solve for x
    x = 16,083,699,933.12/153,140.32
  6. Step 6: Final answer
    x = 105,025.90

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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.