Home / 130,707.81-180,370.40-74,108.25

Finding the Fourth Proportional to 130,707.81, 180,370.40 and 74,108.25

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Solution

The fourth proportional to 130,707.81, 180,370.40 and 74,108.25 is: 102,265.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,707.81 : 180,370.40 = 74,108.25 : x
  2. Step 2: Convert to fraction form
    130,707.81/180,370.40 = 74,108.25/x
  3. Step 3: Cross multiply
    130,707.81x = 180,370.40 × 74,108.25
  4. Step 4: Simplify right side
    130,707.81x = 13,366,934,325.26
  5. Step 5: Solve for x
    x = 13,366,934,325.26/130,707.81
  6. Step 6: Final answer
    x = 102,265.77

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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.