Home / 101,070.84-139,534.20-70,948.56

Finding the Fourth Proportional to 101,070.84, 139,534.20 and 70,948.56

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Solution

The fourth proportional to 101,070.84, 139,534.20 and 70,948.56 is: 97,948.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,070.84 : 139,534.20 = 70,948.56 : x
  2. Step 2: Convert to fraction form
    101,070.84/139,534.20 = 70,948.56/x
  3. Step 3: Cross multiply
    101,070.84x = 139,534.20 × 70,948.56
  4. Step 4: Simplify right side
    101,070.84x = 9,899,750,560.75
  5. Step 5: Solve for x
    x = 9,899,750,560.75/101,070.84
  6. Step 6: Final answer
    x = 97,948.63

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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.