Home / 128,046.85-176,714.45-70,697.23

Finding the Fourth Proportional to 128,046.85, 176,714.45 and 70,697.23

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Solution

The fourth proportional to 128,046.85, 176,714.45 and 70,697.23 is: 97,567.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,046.85 : 176,714.45 = 70,697.23 : x
  2. Step 2: Convert to fraction form
    128,046.85/176,714.45 = 70,697.23/x
  3. Step 3: Cross multiply
    128,046.85x = 176,714.45 × 70,697.23
  4. Step 4: Simplify right side
    128,046.85x = 12,493,221,762.49
  5. Step 5: Solve for x
    x = 12,493,221,762.49/128,046.85
  6. Step 6: Final answer
    x = 97,567.58

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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.