Home / 156,904.09-216,522.35-89,823.13

Finding the Fourth Proportional to 156,904.09, 216,522.35 and 89,823.13

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Solution

The fourth proportional to 156,904.09, 216,522.35 and 89,823.13 is: 123,952.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,904.09 : 216,522.35 = 89,823.13 : x
  2. Step 2: Convert to fraction form
    156,904.09/216,522.35 = 89,823.13/x
  3. Step 3: Cross multiply
    156,904.09x = 216,522.35 × 89,823.13
  4. Step 4: Simplify right side
    156,904.09x = 19,448,714,742.84
  5. Step 5: Solve for x
    x = 19,448,714,742.84/156,904.09
  6. Step 6: Final answer
    x = 123,952.89

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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.