Home / 158,147.04-218,242.78-86,527.36

Finding the Fourth Proportional to 158,147.04, 218,242.78 and 86,527.36

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Solution

The fourth proportional to 158,147.04, 218,242.78 and 86,527.36 is: 119,407.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,147.04 : 218,242.78 = 86,527.36 : x
  2. Step 2: Convert to fraction form
    158,147.04/218,242.78 = 86,527.36/x
  3. Step 3: Cross multiply
    158,147.04x = 218,242.78 × 86,527.36
  4. Step 4: Simplify right side
    158,147.04x = 18,883,971,592.46
  5. Step 5: Solve for x
    x = 18,883,971,592.46/158,147.04
  6. Step 6: Final answer
    x = 119,407.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.