Home / 158,128.83-218,350.76-112,945.41

Finding the Fourth Proportional to 158,128.83, 218,350.76 and 112,945.41

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Solution

The fourth proportional to 158,128.83, 218,350.76 and 112,945.41 is: 155,959.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,128.83 : 218,350.76 = 112,945.41 : x
  2. Step 2: Convert to fraction form
    158,128.83/218,350.76 = 112,945.41/x
  3. Step 3: Cross multiply
    158,128.83x = 218,350.76 × 112,945.41
  4. Step 4: Simplify right side
    158,128.83x = 24,661,715,547.28
  5. Step 5: Solve for x
    x = 24,661,715,547.28/158,128.83
  6. Step 6: Final answer
    x = 155,959.64

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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.