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Finding the Fourth Proportional to 178,071.60, 267,212.32 and 65,831.12

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Solution

The fourth proportional to 178,071.60, 267,212.32 and 65,831.12 is: 98,785.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,071.60 : 267,212.32 = 65,831.12 : x
  2. Step 2: Convert to fraction form
    178,071.60/267,212.32 = 65,831.12/x
  3. Step 3: Cross multiply
    178,071.60x = 267,212.32 × 65,831.12
  4. Step 4: Simplify right side
    178,071.60x = 17,590,886,303.40
  5. Step 5: Solve for x
    x = 17,590,886,303.40/178,071.60
  6. Step 6: Final answer
    x = 98,785.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.