Home / 113,426.79-156,519.66-65,683.23

Finding the Fourth Proportional to 113,426.79, 156,519.66 and 65,683.23

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Solution

The fourth proportional to 113,426.79, 156,519.66 and 65,683.23 is: 90,637.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,426.79 : 156,519.66 = 65,683.23 : x
  2. Step 2: Convert to fraction form
    113,426.79/156,519.66 = 65,683.23/x
  3. Step 3: Cross multiply
    113,426.79x = 156,519.66 × 65,683.23
  4. Step 4: Simplify right side
    113,426.79x = 10,280,716,827.30
  5. Step 5: Solve for x
    x = 10,280,716,827.30/113,426.79
  6. Step 6: Final answer
    x = 90,637.47

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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.