Home / 118,458.45-163,420.18-70,684.18

Finding the Fourth Proportional to 118,458.45, 163,420.18 and 70,684.18

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Solution

The fourth proportional to 118,458.45, 163,420.18 and 70,684.18 is: 97,512.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,458.45 : 163,420.18 = 70,684.18 : x
  2. Step 2: Convert to fraction form
    118,458.45/163,420.18 = 70,684.18/x
  3. Step 3: Cross multiply
    118,458.45x = 163,420.18 × 70,684.18
  4. Step 4: Simplify right side
    118,458.45x = 11,551,220,833.49
  5. Step 5: Solve for x
    x = 11,551,220,833.49/118,458.45
  6. Step 6: Final answer
    x = 97,512.85

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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.