Home / 112,415.40-168,632.70-38,543.40

Finding the Fourth Proportional to 112,415.40, 168,632.70 and 38,543.40

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Solution

The fourth proportional to 112,415.40, 168,632.70 and 38,543.40 is: 57,818.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,415.40 : 168,632.70 = 38,543.40 : x
  2. Step 2: Convert to fraction form
    112,415.40/168,632.70 = 38,543.40/x
  3. Step 3: Cross multiply
    112,415.40x = 168,632.70 × 38,543.40
  4. Step 4: Simplify right side
    112,415.40x = 6,499,677,609.18
  5. Step 5: Solve for x
    x = 6,499,677,609.18/112,415.40
  6. Step 6: Final answer
    x = 57,818.39

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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.