Home / 222,123.13-306,530.12-121,521.13

Finding the Fourth Proportional to 222,123.13, 306,530.12 and 121,521.13

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Solution

The fourth proportional to 222,123.13, 306,530.12 and 121,521.13 is: 167,699.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,123.13 : 306,530.12 = 121,521.13 : x
  2. Step 2: Convert to fraction form
    222,123.13/306,530.12 = 121,521.13/x
  3. Step 3: Cross multiply
    222,123.13x = 306,530.12 × 121,521.13
  4. Step 4: Simplify right side
    222,123.13x = 37,249,884,421.18
  5. Step 5: Solve for x
    x = 37,249,884,421.18/222,123.13
  6. Step 6: Final answer
    x = 167,699.26

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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.