Home / 112,071.40-168,107.10-103,517.80

Finding the Fourth Proportional to 112,071.40, 168,107.10 and 103,517.80

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Solution

The fourth proportional to 112,071.40, 168,107.10 and 103,517.80 is: 155,276.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,071.40 : 168,107.10 = 103,517.80 : x
  2. Step 2: Convert to fraction form
    112,071.40/168,107.10 = 103,517.80/x
  3. Step 3: Cross multiply
    112,071.40x = 168,107.10 × 103,517.80
  4. Step 4: Simplify right side
    112,071.40x = 17,402,077,156.38
  5. Step 5: Solve for x
    x = 17,402,077,156.38/112,071.40
  6. Step 6: Final answer
    x = 155,276.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.