Home / 121,748.10-168,029.07-70,064.13

Finding the Fourth Proportional to 121,748.10, 168,029.07 and 70,064.13

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Solution

The fourth proportional to 121,748.10, 168,029.07 and 70,064.13 is: 96,698.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,748.10 : 168,029.07 = 70,064.13 : x
  2. Step 2: Convert to fraction form
    121,748.10/168,029.07 = 70,064.13/x
  3. Step 3: Cross multiply
    121,748.10x = 168,029.07 × 70,064.13
  4. Step 4: Simplify right side
    121,748.10x = 11,772,810,604.26
  5. Step 5: Solve for x
    x = 11,772,810,604.26/121,748.10
  6. Step 6: Final answer
    x = 96,698.11

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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.