Home / 128,041.97-176,707.70-70,692.35

Finding the Fourth Proportional to 128,041.97, 176,707.70 and 70,692.35

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Solution

The fourth proportional to 128,041.97, 176,707.70 and 70,692.35 is: 97,560.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,041.97 : 176,707.70 = 70,692.35 : x
  2. Step 2: Convert to fraction form
    128,041.97/176,707.70 = 70,692.35/x
  3. Step 3: Cross multiply
    128,041.97x = 176,707.70 × 70,692.35
  4. Step 4: Simplify right side
    128,041.97x = 12,491,881,803.01
  5. Step 5: Solve for x
    x = 12,491,881,803.01/128,041.97
  6. Step 6: Final answer
    x = 97,560.84

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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.