Home / 158,001.22-218,041.67-86,381.22

Finding the Fourth Proportional to 158,001.22, 218,041.67 and 86,381.22

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Solution

The fourth proportional to 158,001.22, 218,041.67 and 86,381.22 is: 119,206.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,001.22 : 218,041.67 = 86,381.22 : x
  2. Step 2: Convert to fraction form
    158,001.22/218,041.67 = 86,381.22/x
  3. Step 3: Cross multiply
    158,001.22x = 218,041.67 × 86,381.22
  4. Step 4: Simplify right side
    158,001.22x = 18,834,706,499.05
  5. Step 5: Solve for x
    x = 18,834,706,499.05/158,001.22
  6. Step 6: Final answer
    x = 119,206.08

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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.