Home / 228,429.12-315,235.90-125,061.57

Finding the Fourth Proportional to 228,429.12, 315,235.90 and 125,061.57

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Solution

The fourth proportional to 228,429.12, 315,235.90 and 125,061.57 is: 172,587.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,429.12 : 315,235.90 = 125,061.57 : x
  2. Step 2: Convert to fraction form
    228,429.12/315,235.90 = 125,061.57/x
  3. Step 3: Cross multiply
    228,429.12x = 315,235.90 × 125,061.57
  4. Step 4: Simplify right side
    228,429.12x = 39,423,896,913.82
  5. Step 5: Solve for x
    x = 39,423,896,913.82/228,429.12
  6. Step 6: Final answer
    x = 172,587.01

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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.