Home / 111,034.90-153,278.20-70,802.74

Finding the Fourth Proportional to 111,034.90, 153,278.20 and 70,802.74

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Solution

The fourth proportional to 111,034.90, 153,278.20 and 70,802.74 is: 97,739.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,034.90 : 153,278.20 = 70,802.74 : x
  2. Step 2: Convert to fraction form
    111,034.90/153,278.20 = 70,802.74/x
  3. Step 3: Cross multiply
    111,034.90x = 153,278.20 × 70,802.74
  4. Step 4: Simplify right side
    111,034.90x = 10,852,516,542.27
  5. Step 5: Solve for x
    x = 10,852,516,542.27/111,034.90
  6. Step 6: Final answer
    x = 97,739.69

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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.