Home / 134,547.46-201,430.22-78,215.80

Finding the Fourth Proportional to 134,547.46, 201,430.22 and 78,215.80

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Solution

The fourth proportional to 134,547.46, 201,430.22 and 78,215.80 is: 117,096.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,547.46 : 201,430.22 = 78,215.80 : x
  2. Step 2: Convert to fraction form
    134,547.46/201,430.22 = 78,215.80/x
  3. Step 3: Cross multiply
    134,547.46x = 201,430.22 × 78,215.80
  4. Step 4: Simplify right side
    134,547.46x = 15,755,025,801.48
  5. Step 5: Solve for x
    x = 15,755,025,801.48/134,547.46
  6. Step 6: Final answer
    x = 117,096.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.