Home / 157,521.04-217,415.52-103,815.60

Finding the Fourth Proportional to 157,521.04, 217,415.52 and 103,815.60

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Solution

The fourth proportional to 157,521.04, 217,415.52 and 103,815.60 is: 143,289.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,521.04 : 217,415.52 = 103,815.60 : x
  2. Step 2: Convert to fraction form
    157,521.04/217,415.52 = 103,815.60/x
  3. Step 3: Cross multiply
    157,521.04x = 217,415.52 × 103,815.60
  4. Step 4: Simplify right side
    157,521.04x = 22,571,122,658.11
  5. Step 5: Solve for x
    x = 22,571,122,658.11/157,521.04
  6. Step 6: Final answer
    x = 143,289.57

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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.