Home / 130,434.86-180,000.78-73,857.26

Finding the Fourth Proportional to 130,434.86, 180,000.78 and 73,857.26

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Solution

The fourth proportional to 130,434.86, 180,000.78 and 73,857.26 is: 101,923.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,434.86 : 180,000.78 = 73,857.26 : x
  2. Step 2: Convert to fraction form
    130,434.86/180,000.78 = 73,857.26/x
  3. Step 3: Cross multiply
    130,434.86x = 180,000.78 × 73,857.26
  4. Step 4: Simplify right side
    130,434.86x = 13,294,364,408.66
  5. Step 5: Solve for x
    x = 13,294,364,408.66/130,434.86
  6. Step 6: Final answer
    x = 101,923.40

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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.