Home / 156,885.32-216,503.18-85,265.51

Finding the Fourth Proportional to 156,885.32, 216,503.18 and 85,265.51

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Solution

The fourth proportional to 156,885.32, 216,503.18 and 85,265.51 is: 117,667.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,885.32 : 216,503.18 = 85,265.51 : x
  2. Step 2: Convert to fraction form
    156,885.32/216,503.18 = 85,265.51/x
  3. Step 3: Cross multiply
    156,885.32x = 216,503.18 × 85,265.51
  4. Step 4: Simplify right side
    156,885.32x = 18,460,252,550.48
  5. Step 5: Solve for x
    x = 18,460,252,550.48/156,885.32
  6. Step 6: Final answer
    x = 117,667.18

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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.