Home / 219,545.12-302,973.72-118,943.12

Finding the Fourth Proportional to 219,545.12, 302,973.72 and 118,943.12

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Solution

The fourth proportional to 219,545.12, 302,973.72 and 118,943.12 is: 164,142.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,545.12 : 302,973.72 = 118,943.12 : x
  2. Step 2: Convert to fraction form
    219,545.12/302,973.72 = 118,943.12/x
  3. Step 3: Cross multiply
    219,545.12x = 302,973.72 × 118,943.12
  4. Step 4: Simplify right side
    219,545.12x = 36,036,639,534.81
  5. Step 5: Solve for x
    x = 36,036,639,534.81/219,545.12
  6. Step 6: Final answer
    x = 164,142.29

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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.