Home / 157,033.10-216,703.86-85,411.58

Finding the Fourth Proportional to 157,033.10, 216,703.86 and 85,411.58

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Solution

The fourth proportional to 157,033.10, 216,703.86 and 85,411.58 is: 117,866.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,033.10 : 216,703.86 = 85,411.58 : x
  2. Step 2: Convert to fraction form
    157,033.10/216,703.86 = 85,411.58/x
  3. Step 3: Cross multiply
    157,033.10x = 216,703.86 × 85,411.58
  4. Step 4: Simplify right side
    157,033.10x = 18,509,019,074.70
  5. Step 5: Solve for x
    x = 18,509,019,074.70/157,033.10
  6. Step 6: Final answer
    x = 117,866.99

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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.