Home / 130,734.70-180,426.09-77,036.38

Finding the Fourth Proportional to 130,734.70, 180,426.09 and 77,036.38

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Solution

The fourth proportional to 130,734.70, 180,426.09 and 77,036.38 is: 106,317.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,734.70 : 180,426.09 = 77,036.38 : x
  2. Step 2: Convert to fraction form
    130,734.70/180,426.09 = 77,036.38/x
  3. Step 3: Cross multiply
    130,734.70x = 180,426.09 × 77,036.38
  4. Step 4: Simplify right side
    130,734.70x = 13,899,372,831.15
  5. Step 5: Solve for x
    x = 13,899,372,831.15/130,734.70
  6. Step 6: Final answer
    x = 106,317.40

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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.