Home / 425,033.50-637,634.38-121,430.24

Finding the Fourth Proportional to 425,033.50, 637,634.38 and 121,430.24

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Solution

The fourth proportional to 425,033.50, 637,634.38 and 121,430.24 is: 182,169.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,033.50 : 637,634.38 = 121,430.24 : x
  2. Step 2: Convert to fraction form
    425,033.50/637,634.38 = 121,430.24/x
  3. Step 3: Cross multiply
    425,033.50x = 637,634.38 × 121,430.24
  4. Step 4: Simplify right side
    425,033.50x = 77,428,095,198.82
  5. Step 5: Solve for x
    x = 77,428,095,198.82/425,033.50
  6. Step 6: Final answer
    x = 182,169.40

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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.