Home / 158,130.23-218,221.29-86,513.27

Finding the Fourth Proportional to 158,130.23, 218,221.29 and 86,513.27

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Solution

The fourth proportional to 158,130.23, 218,221.29 and 86,513.27 is: 119,389.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,130.23 : 218,221.29 = 86,513.27 : x
  2. Step 2: Convert to fraction form
    158,130.23/218,221.29 = 86,513.27/x
  3. Step 3: Cross multiply
    158,130.23x = 218,221.29 × 86,513.27
  4. Step 4: Simplify right side
    158,130.23x = 18,879,036,290.41
  5. Step 5: Solve for x
    x = 18,879,036,290.41/158,130.23
  6. Step 6: Final answer
    x = 119,389.17

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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.