Home / 111,278.73-153,557.37-70,988.17

Finding the Fourth Proportional to 111,278.73, 153,557.37 and 70,988.17

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Solution

The fourth proportional to 111,278.73, 153,557.37 and 70,988.17 is: 97,959.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,278.73 : 153,557.37 = 70,988.17 : x
  2. Step 2: Convert to fraction form
    111,278.73/153,557.37 = 70,988.17/x
  3. Step 3: Cross multiply
    111,278.73x = 153,557.37 × 70,988.17
  4. Step 4: Simplify right side
    111,278.73x = 10,900,756,686.31
  5. Step 5: Solve for x
    x = 10,900,756,686.31/111,278.73
  6. Step 6: Final answer
    x = 97,959.03

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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.