Home / 121,746.24-167,980.98-70,728.66

Finding the Fourth Proportional to 121,746.24, 167,980.98 and 70,728.66

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Solution

The fourth proportional to 121,746.24, 167,980.98 and 70,728.66 is: 97,588.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,746.24 : 167,980.98 = 70,728.66 : x
  2. Step 2: Convert to fraction form
    121,746.24/167,980.98 = 70,728.66/x
  3. Step 3: Cross multiply
    121,746.24x = 167,980.98 × 70,728.66
  4. Step 4: Simplify right side
    121,746.24x = 11,881,069,620.89
  5. Step 5: Solve for x
    x = 11,881,069,620.89/121,746.24
  6. Step 6: Final answer
    x = 97,588.80

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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.