Home / 186,397.12-257,237.13-105,823.18

Finding the Fourth Proportional to 186,397.12, 257,237.13 and 105,823.18

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Solution

The fourth proportional to 186,397.12, 257,237.13 and 105,823.18 is: 146,041.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,397.12 : 257,237.13 = 105,823.18 : x
  2. Step 2: Convert to fraction form
    186,397.12/257,237.13 = 105,823.18/x
  3. Step 3: Cross multiply
    186,397.12x = 257,237.13 × 105,823.18
  4. Step 4: Simplify right side
    186,397.12x = 27,221,651,110.67
  5. Step 5: Solve for x
    x = 27,221,651,110.67/186,397.12
  6. Step 6: Final answer
    x = 146,041.16

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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.