Home / 128,214.76-176,935.92-70,852.48

Finding the Fourth Proportional to 128,214.76, 176,935.92 and 70,852.48

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Solution

The fourth proportional to 128,214.76, 176,935.92 and 70,852.48 is: 97,776.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,214.76 : 176,935.92 = 70,852.48 : x
  2. Step 2: Convert to fraction form
    128,214.76/176,935.92 = 70,852.48/x
  3. Step 3: Cross multiply
    128,214.76x = 176,935.92 × 70,852.48
  4. Step 4: Simplify right side
    128,214.76x = 12,536,348,733.08
  5. Step 5: Solve for x
    x = 12,536,348,733.08/128,214.76
  6. Step 6: Final answer
    x = 97,776.17

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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.