Home / 128,066.40-176,733.90-70,712.46

Finding the Fourth Proportional to 128,066.40, 176,733.90 and 70,712.46

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Solution

The fourth proportional to 128,066.40, 176,733.90 and 70,712.46 is: 97,584.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,066.40 : 176,733.90 = 70,712.46 : x
  2. Step 2: Convert to fraction form
    128,066.40/176,733.90 = 70,712.46/x
  3. Step 3: Cross multiply
    128,066.40x = 176,733.90 × 70,712.46
  4. Step 4: Simplify right side
    128,066.40x = 12,497,288,834.39
  5. Step 5: Solve for x
    x = 12,497,288,834.39/128,066.40
  6. Step 6: Final answer
    x = 97,584.45

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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.