Home / 130,667.10-180,315.50-74,077.26

Finding the Fourth Proportional to 130,667.10, 180,315.50 and 74,077.26

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Solution

The fourth proportional to 130,667.10, 180,315.50 and 74,077.26 is: 102,223.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,667.10 : 180,315.50 = 74,077.26 : x
  2. Step 2: Convert to fraction form
    130,667.10/180,315.50 = 74,077.26/x
  3. Step 3: Cross multiply
    130,667.10x = 180,315.50 × 74,077.26
  4. Step 4: Simplify right side
    130,667.10x = 13,357,277,805.14
  5. Step 5: Solve for x
    x = 13,357,277,805.14/130,667.10
  6. Step 6: Final answer
    x = 102,223.73

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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.