Home / 113,329.09-156,384.50-65,585.40

Finding the Fourth Proportional to 113,329.09, 156,384.50 and 65,585.40

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Solution

The fourth proportional to 113,329.09, 156,384.50 and 65,585.40 is: 90,502.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,329.09 : 156,384.50 = 65,585.40 : x
  2. Step 2: Convert to fraction form
    113,329.09/156,384.50 = 65,585.40/x
  3. Step 3: Cross multiply
    113,329.09x = 156,384.50 × 65,585.40
  4. Step 4: Simplify right side
    113,329.09x = 10,256,539,986.30
  5. Step 5: Solve for x
    x = 10,256,539,986.30/113,329.09
  6. Step 6: Final answer
    x = 90,502.27

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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.