Home / 118,121.89-163,026.90-70,402.92

Finding the Fourth Proportional to 118,121.89, 163,026.90 and 70,402.92

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Solution

The fourth proportional to 118,121.89, 163,026.90 and 70,402.92 is: 97,167.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,121.89 : 163,026.90 = 70,402.92 : x
  2. Step 2: Convert to fraction form
    118,121.89/163,026.90 = 70,402.92/x
  3. Step 3: Cross multiply
    118,121.89x = 163,026.90 × 70,402.92
  4. Step 4: Simplify right side
    118,121.89x = 11,477,569,798.55
  5. Step 5: Solve for x
    x = 11,477,569,798.55/118,121.89
  6. Step 6: Final answer
    x = 97,167.17

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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.