Home / 145,705.16-218,502.36-69,725.70

Finding the Fourth Proportional to 145,705.16, 218,502.36 and 69,725.70

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Solution

The fourth proportional to 145,705.16, 218,502.36 and 69,725.70 is: 104,562.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,705.16 : 218,502.36 = 69,725.70 : x
  2. Step 2: Convert to fraction form
    145,705.16/218,502.36 = 69,725.70/x
  3. Step 3: Cross multiply
    145,705.16x = 218,502.36 × 69,725.70
  4. Step 4: Simplify right side
    145,705.16x = 15,235,230,002.65
  5. Step 5: Solve for x
    x = 15,235,230,002.65/145,705.16
  6. Step 6: Final answer
    x = 104,562.05

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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.