Home / 425,020.69-637,615.16-121,417.46

Finding the Fourth Proportional to 425,020.69, 637,615.16 and 121,417.46

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Solution

The fourth proportional to 425,020.69, 637,615.16 and 121,417.46 is: 182,150.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,020.69 : 637,615.16 = 121,417.46 : x
  2. Step 2: Convert to fraction form
    425,020.69/637,615.16 = 121,417.46/x
  3. Step 3: Cross multiply
    425,020.69x = 637,615.16 × 121,417.46
  4. Step 4: Simplify right side
    425,020.69x = 77,417,615,082.28
  5. Step 5: Solve for x
    x = 77,417,615,082.28/425,020.69
  6. Step 6: Final answer
    x = 182,150.23

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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.