Home / 158,300.22-218,444.67-86,681.10

Finding the Fourth Proportional to 158,300.22, 218,444.67 and 86,681.10

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Solution

The fourth proportional to 158,300.22, 218,444.67 and 86,681.10 is: 119,614.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,300.22 : 218,444.67 = 86,681.10 : x
  2. Step 2: Convert to fraction form
    158,300.22/218,444.67 = 86,681.10/x
  3. Step 3: Cross multiply
    158,300.22x = 218,444.67 × 86,681.10
  4. Step 4: Simplify right side
    158,300.22x = 18,935,024,284.74
  5. Step 5: Solve for x
    x = 18,935,024,284.74/158,300.22
  6. Step 6: Final answer
    x = 119,614.64

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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.