Home / 129,931.12-179,477.04-104,533.12

Finding the Fourth Proportional to 129,931.12, 179,477.04 and 104,533.12

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Solution

The fourth proportional to 129,931.12, 179,477.04 and 104,533.12 is: 144,394.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,931.12 : 179,477.04 = 104,533.12 : x
  2. Step 2: Convert to fraction form
    129,931.12/179,477.04 = 104,533.12/x
  3. Step 3: Cross multiply
    129,931.12x = 179,477.04 × 104,533.12
  4. Step 4: Simplify right side
    129,931.12x = 18,761,294,959.56
  5. Step 5: Solve for x
    x = 18,761,294,959.56/129,931.12
  6. Step 6: Final answer
    x = 144,394.16

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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.