Home / 102,307.69-141,206.40-68,754.25

Finding the Fourth Proportional to 102,307.69, 141,206.40 and 68,754.25

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Solution

The fourth proportional to 102,307.69, 141,206.40 and 68,754.25 is: 94,895.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,307.69 : 141,206.40 = 68,754.25 : x
  2. Step 2: Convert to fraction form
    102,307.69/141,206.40 = 68,754.25/x
  3. Step 3: Cross multiply
    102,307.69x = 141,206.40 × 68,754.25
  4. Step 4: Simplify right side
    102,307.69x = 9,708,540,127.20
  5. Step 5: Solve for x
    x = 9,708,540,127.20/102,307.69
  6. Step 6: Final answer
    x = 94,895.51

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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.