Home / 186,569.81-257,503.07-129,948.38

Finding the Fourth Proportional to 186,569.81, 257,503.07 and 129,948.38

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Solution

The fourth proportional to 186,569.81, 257,503.07 and 129,948.38 is: 179,354.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,569.81 : 257,503.07 = 129,948.38 : x
  2. Step 2: Convert to fraction form
    186,569.81/257,503.07 = 129,948.38/x
  3. Step 3: Cross multiply
    186,569.81x = 257,503.07 × 129,948.38
  4. Step 4: Simplify right side
    186,569.81x = 33,462,105,828.88
  5. Step 5: Solve for x
    x = 33,462,105,828.88/186,569.81
  6. Step 6: Final answer
    x = 179,354.35

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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.