Home / 156,937.37-216,571.02-85,319.18

Finding the Fourth Proportional to 156,937.37, 216,571.02 and 85,319.18

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Solution

The fourth proportional to 156,937.37, 216,571.02 and 85,319.18 is: 117,739.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,937.37 : 216,571.02 = 85,319.18 : x
  2. Step 2: Convert to fraction form
    156,937.37/216,571.02 = 85,319.18/x
  3. Step 3: Cross multiply
    156,937.37x = 216,571.02 × 85,319.18
  4. Step 4: Simplify right side
    156,937.37x = 18,477,661,838.16
  5. Step 5: Solve for x
    x = 18,477,661,838.16/156,937.37
  6. Step 6: Final answer
    x = 117,739.08

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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.