Home / 113,087.29-156,038.75-72,272.75

Finding the Fourth Proportional to 113,087.29, 156,038.75 and 72,272.75

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Solution

The fourth proportional to 113,087.29, 156,038.75 and 72,272.75 is: 99,722.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,087.29 : 156,038.75 = 72,272.75 : x
  2. Step 2: Convert to fraction form
    113,087.29/156,038.75 = 72,272.75/x
  3. Step 3: Cross multiply
    113,087.29x = 156,038.75 × 72,272.75
  4. Step 4: Simplify right side
    113,087.29x = 11,277,349,569.06
  5. Step 5: Solve for x
    x = 11,277,349,569.06/113,087.29
  6. Step 6: Final answer
    x = 99,722.52

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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.