Home / 126,658.72-174,779.40-70,068.88

Finding the Fourth Proportional to 126,658.72, 174,779.40 and 70,068.88

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Solution

The fourth proportional to 126,658.72, 174,779.40 and 70,068.88 is: 96,689.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,658.72 : 174,779.40 = 70,068.88 : x
  2. Step 2: Convert to fraction form
    126,658.72/174,779.40 = 70,068.88/x
  3. Step 3: Cross multiply
    126,658.72x = 174,779.40 × 70,068.88
  4. Step 4: Simplify right side
    126,658.72x = 12,246,596,805.07
  5. Step 5: Solve for x
    x = 12,246,596,805.07/126,658.72
  6. Step 6: Final answer
    x = 96,689.72

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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.