Home / 186,306.34-257,273.55-118,345.21

Finding the Fourth Proportional to 186,306.34, 257,273.55 and 118,345.21

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Solution

The fourth proportional to 186,306.34, 257,273.55 and 118,345.21 is: 163,424.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,306.34 : 257,273.55 = 118,345.21 : x
  2. Step 2: Convert to fraction form
    186,306.34/257,273.55 = 118,345.21/x
  3. Step 3: Cross multiply
    186,306.34x = 257,273.55 × 118,345.21
  4. Step 4: Simplify right side
    186,306.34x = 30,447,092,302.20
  5. Step 5: Solve for x
    x = 30,447,092,302.20/186,306.34
  6. Step 6: Final answer
    x = 163,424.89

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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.