Home / 102,398.36-141,307.58-57,076.16

Finding the Fourth Proportional to 102,398.36, 141,307.58 and 57,076.16

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Solution

The fourth proportional to 102,398.36, 141,307.58 and 57,076.16 is: 78,763.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,398.36 : 141,307.58 = 57,076.16 : x
  2. Step 2: Convert to fraction form
    102,398.36/141,307.58 = 57,076.16/x
  3. Step 3: Cross multiply
    102,398.36x = 141,307.58 × 57,076.16
  4. Step 4: Simplify right side
    102,398.36x = 8,065,294,045.29
  5. Step 5: Solve for x
    x = 8,065,294,045.29/102,398.36
  6. Step 6: Final answer
    x = 78,763.90

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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.