Home / 112,328.10-168,139.80-61,657.74

Finding the Fourth Proportional to 112,328.10, 168,139.80 and 61,657.74

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Solution

The fourth proportional to 112,328.10, 168,139.80 and 61,657.74 is: 92,293.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,328.10 : 168,139.80 = 61,657.74 : x
  2. Step 2: Convert to fraction form
    112,328.10/168,139.80 = 61,657.74/x
  3. Step 3: Cross multiply
    112,328.10x = 168,139.80 × 61,657.74
  4. Step 4: Simplify right side
    112,328.10x = 10,367,120,072.05
  5. Step 5: Solve for x
    x = 10,367,120,072.05/112,328.10
  6. Step 6: Final answer
    x = 92,293.20

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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.