Home / 128,026.34-176,679.33-70,666.53

Finding the Fourth Proportional to 128,026.34, 176,679.33 and 70,666.53

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Solution

The fourth proportional to 128,026.34, 176,679.33 and 70,666.53 is: 97,521.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,026.34 : 176,679.33 = 70,666.53 : x
  2. Step 2: Convert to fraction form
    128,026.34/176,679.33 = 70,666.53/x
  3. Step 3: Cross multiply
    128,026.34x = 176,679.33 × 70,666.53
  4. Step 4: Simplify right side
    128,026.34x = 12,485,314,246.28
  5. Step 5: Solve for x
    x = 12,485,314,246.28/128,026.34
  6. Step 6: Final answer
    x = 97,521.45

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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.