Home / 314,816.74-472,085.79-90,125.98

Finding the Fourth Proportional to 314,816.74, 472,085.79 and 90,125.98

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Solution

The fourth proportional to 314,816.74, 472,085.79 and 90,125.98 is: 135,149.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,816.74 : 472,085.79 = 90,125.98 : x
  2. Step 2: Convert to fraction form
    314,816.74/472,085.79 = 90,125.98/x
  3. Step 3: Cross multiply
    314,816.74x = 472,085.79 × 90,125.98
  4. Step 4: Simplify right side
    314,816.74x = 42,547,192,949.64
  5. Step 5: Solve for x
    x = 42,547,192,949.64/314,816.74
  6. Step 6: Final answer
    x = 135,149.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.