Home / 223,130.04-307,830.15-142,536.66

Finding the Fourth Proportional to 223,130.04, 307,830.15 and 142,536.66

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Solution

The fourth proportional to 223,130.04, 307,830.15 and 142,536.66 is: 196,643.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,130.04 : 307,830.15 = 142,536.66 : x
  2. Step 2: Convert to fraction form
    223,130.04/307,830.15 = 142,536.66/x
  3. Step 3: Cross multiply
    223,130.04x = 307,830.15 × 142,536.66
  4. Step 4: Simplify right side
    223,130.04x = 43,877,081,428.30
  5. Step 5: Solve for x
    x = 43,877,081,428.30/223,130.04
  6. Step 6: Final answer
    x = 196,643.54

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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.