Home / 102,879,368.53-142,091,358.20-67,754,190.76

Finding the Fourth Proportional to 102,879,368.53, 142,091,358.20 and 67,754,190.76

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Solution

The fourth proportional to 102,879,368.53, 142,091,358.20 and 67,754,190.76 is: 93,578,383.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,879,368.53 : 142,091,358.20 = 67,754,190.76 : x
  2. Step 2: Convert to fraction form
    102,879,368.53/142,091,358.20 = 67,754,190.76/x
  3. Step 3: Cross multiply
    102,879,368.53x = 142,091,358.20 × 67,754,190.76
  4. Step 4: Simplify right side
    102,879,368.53x = 9,627,284,988,390,368
  5. Step 5: Solve for x
    x = 9,627,284,988,390,368/102,879,368.53
  6. Step 6: Final answer
    x = 93,578,383.36

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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.