Home / 90,101.51-124,206.23-77,292.98

Finding the Fourth Proportional to 90,101.51, 124,206.23 and 77,292.98

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Solution

The fourth proportional to 90,101.51, 124,206.23 and 77,292.98 is: 106,549.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,101.51 : 124,206.23 = 77,292.98 : x
  2. Step 2: Convert to fraction form
    90,101.51/124,206.23 = 77,292.98/x
  3. Step 3: Cross multiply
    90,101.51x = 124,206.23 × 77,292.98
  4. Step 4: Simplify right side
    90,101.51x = 9,600,269,223.47
  5. Step 5: Solve for x
    x = 9,600,269,223.47/90,101.51
  6. Step 6: Final answer
    x = 106,549.49

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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.