Home / 219,158.40-302,447.70-123,665.16

Finding the Fourth Proportional to 219,158.40, 302,447.70 and 123,665.16

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Solution

The fourth proportional to 219,158.40, 302,447.70 and 123,665.16 is: 170,663.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,158.40 : 302,447.70 = 123,665.16 : x
  2. Step 2: Convert to fraction form
    219,158.40/302,447.70 = 123,665.16/x
  3. Step 3: Cross multiply
    219,158.40x = 302,447.70 × 123,665.16
  4. Step 4: Simplify right side
    219,158.40x = 37,402,243,212.13
  5. Step 5: Solve for x
    x = 37,402,243,212.13/219,158.40
  6. Step 6: Final answer
    x = 170,663.06

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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.