Home / 118,020.45-162,868.95-70,275.81

Finding the Fourth Proportional to 118,020.45, 162,868.95 and 70,275.81

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Solution

The fourth proportional to 118,020.45, 162,868.95 and 70,275.81 is: 96,981.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,020.45 : 162,868.95 = 70,275.81 : x
  2. Step 2: Convert to fraction form
    118,020.45/162,868.95 = 70,275.81/x
  3. Step 3: Cross multiply
    118,020.45x = 162,868.95 × 70,275.81
  4. Step 4: Simplify right side
    118,020.45x = 11,445,747,385.10
  5. Step 5: Solve for x
    x = 11,445,747,385.10/118,020.45
  6. Step 6: Final answer
    x = 96,981.05

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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.