Home / 409,159.04-613,740.18-142,918.52

Finding the Fourth Proportional to 409,159.04, 613,740.18 and 142,918.52

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Solution

The fourth proportional to 409,159.04, 613,740.18 and 142,918.52 is: 214,378.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,159.04 : 613,740.18 = 142,918.52 : x
  2. Step 2: Convert to fraction form
    409,159.04/613,740.18 = 142,918.52/x
  3. Step 3: Cross multiply
    409,159.04x = 613,740.18 × 142,918.52
  4. Step 4: Simplify right side
    409,159.04x = 87,714,838,190.13
  5. Step 5: Solve for x
    x = 87,714,838,190.13/409,159.04
  6. Step 6: Final answer
    x = 214,378.35

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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.