Home / 121,005.08-166,962.54-70,694.36

Finding the Fourth Proportional to 121,005.08, 166,962.54 and 70,694.36

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Solution

The fourth proportional to 121,005.08, 166,962.54 and 70,694.36 is: 97,543.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,005.08 : 166,962.54 = 70,694.36 : x
  2. Step 2: Convert to fraction form
    121,005.08/166,962.54 = 70,694.36/x
  3. Step 3: Cross multiply
    121,005.08x = 166,962.54 × 70,694.36
  4. Step 4: Simplify right side
    121,005.08x = 11,803,309,909.27
  5. Step 5: Solve for x
    x = 11,803,309,909.27/121,005.08
  6. Step 6: Final answer
    x = 97,543.92

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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.