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Finding the Fourth Proportional to 158,334.08, 218,501.37 and 85,737.77

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Solution

The fourth proportional to 158,334.08, 218,501.37 and 85,737.77 is: 118,318.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,334.08 : 218,501.37 = 85,737.77 : x
  2. Step 2: Convert to fraction form
    158,334.08/218,501.37 = 85,737.77/x
  3. Step 3: Cross multiply
    158,334.08x = 218,501.37 × 85,737.77
  4. Step 4: Simplify right side
    158,334.08x = 18,733,820,205.74
  5. Step 5: Solve for x
    x = 18,733,820,205.74/158,334.08
  6. Step 6: Final answer
    x = 118,318.31

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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.