Home / 158,270.47-218,412.66-90,287.32

Finding the Fourth Proportional to 158,270.47, 218,412.66 and 90,287.32

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Solution

The fourth proportional to 158,270.47, 218,412.66 and 90,287.32 is: 124,596.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,270.47 : 218,412.66 = 90,287.32 : x
  2. Step 2: Convert to fraction form
    158,270.47/218,412.66 = 90,287.32/x
  3. Step 3: Cross multiply
    158,270.47x = 218,412.66 × 90,287.32
  4. Step 4: Simplify right side
    158,270.47x = 19,719,893,518.02
  5. Step 5: Solve for x
    x = 19,719,893,518.02/158,270.47
  6. Step 6: Final answer
    x = 124,596.16

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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.