Home / 156,075.77-215,385.56-91,531.85

Finding the Fourth Proportional to 156,075.77, 215,385.56 and 91,531.85

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Solution

The fourth proportional to 156,075.77, 215,385.56 and 91,531.85 is: 126,314.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,075.77 : 215,385.56 = 91,531.85 : x
  2. Step 2: Convert to fraction form
    156,075.77/215,385.56 = 91,531.85/x
  3. Step 3: Cross multiply
    156,075.77x = 215,385.56 × 91,531.85
  4. Step 4: Simplify right side
    156,075.77x = 19,714,638,386.44
  5. Step 5: Solve for x
    x = 19,714,638,386.44/156,075.77
  6. Step 6: Final answer
    x = 126,314.53

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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.