Home / 113,445.24-156,588.90-65,710.32

Finding the Fourth Proportional to 113,445.24, 156,588.90 and 65,710.32

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Solution

The fourth proportional to 113,445.24, 156,588.90 and 65,710.32 is: 90,700.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,445.24 : 156,588.90 = 65,710.32 : x
  2. Step 2: Convert to fraction form
    113,445.24/156,588.90 = 65,710.32/x
  3. Step 3: Cross multiply
    113,445.24x = 156,588.90 × 65,710.32
  4. Step 4: Simplify right side
    113,445.24x = 10,289,506,727.45
  5. Step 5: Solve for x
    x = 10,289,506,727.45/113,445.24
  6. Step 6: Final answer
    x = 90,700.21

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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.