Home / 186,085.52-256,803.76-105,516.40

Finding the Fourth Proportional to 186,085.52, 256,803.76 and 105,516.40

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Solution

The fourth proportional to 186,085.52, 256,803.76 and 105,516.40 is: 145,615.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,085.52 : 256,803.76 = 105,516.40 : x
  2. Step 2: Convert to fraction form
    186,085.52/256,803.76 = 105,516.40/x
  3. Step 3: Cross multiply
    186,085.52x = 256,803.76 × 105,516.40
  4. Step 4: Simplify right side
    186,085.52x = 27,097,008,261.66
  5. Step 5: Solve for x
    x = 27,097,008,261.66/186,085.52
  6. Step 6: Final answer
    x = 145,615.89

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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.