Home / 314,816.99-472,086.16-90,126.23

Finding the Fourth Proportional to 314,816.99, 472,086.16 and 90,126.23

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Solution

The fourth proportional to 314,816.99, 472,086.16 and 90,126.23 is: 135,149.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,816.99 : 472,086.16 = 90,126.23 : x
  2. Step 2: Convert to fraction form
    314,816.99/472,086.16 = 90,126.23/x
  3. Step 3: Cross multiply
    314,816.99x = 472,086.16 × 90,126.23
  4. Step 4: Simplify right side
    314,816.99x = 42,547,345,835.98
  5. Step 5: Solve for x
    x = 42,547,345,835.98/314,816.99
  6. Step 6: Final answer
    x = 135,149.46

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1.5x scale

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.