Home / 128,041.49-176,697.30-70,680.85

Finding the Fourth Proportional to 128,041.49, 176,697.30 and 70,680.85

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Solution

The fourth proportional to 128,041.49, 176,697.30 and 70,680.85 is: 97,539.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,041.49 : 176,697.30 = 70,680.85 : x
  2. Step 2: Convert to fraction form
    128,041.49/176,697.30 = 70,680.85/x
  3. Step 3: Cross multiply
    128,041.49x = 176,697.30 × 70,680.85
  4. Step 4: Simplify right side
    128,041.49x = 12,489,115,776.36
  5. Step 5: Solve for x
    x = 12,489,115,776.36/128,041.49
  6. Step 6: Final answer
    x = 97,539.60

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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.