Home / 130,669.35-180,312.75-73,300.65

Finding the Fourth Proportional to 130,669.35, 180,312.75 and 73,300.65

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Solution

The fourth proportional to 130,669.35, 180,312.75 and 73,300.65 is: 101,148.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,669.35 : 180,312.75 = 73,300.65 : x
  2. Step 2: Convert to fraction form
    130,669.35/180,312.75 = 73,300.65/x
  3. Step 3: Cross multiply
    130,669.35x = 180,312.75 × 73,300.65
  4. Step 4: Simplify right side
    130,669.35x = 13,217,041,778.29
  5. Step 5: Solve for x
    x = 13,217,041,778.29/130,669.35
  6. Step 6: Final answer
    x = 101,148.75

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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.