Home / 156,023.88-215,312.73-84,403.74

Finding the Fourth Proportional to 156,023.88, 215,312.73 and 84,403.74

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Solution

The fourth proportional to 156,023.88, 215,312.73 and 84,403.74 is: 116,477.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,023.88 : 215,312.73 = 84,403.74 : x
  2. Step 2: Convert to fraction form
    156,023.88/215,312.73 = 84,403.74/x
  3. Step 3: Cross multiply
    156,023.88x = 215,312.73 × 84,403.74
  4. Step 4: Simplify right side
    156,023.88x = 18,173,199,681.61
  5. Step 5: Solve for x
    x = 18,173,199,681.61/156,023.88
  6. Step 6: Final answer
    x = 116,477.04

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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.