Home / 210,831.06-316,246.57-61,071.40

Finding the Fourth Proportional to 210,831.06, 316,246.57 and 61,071.40

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Solution

The fourth proportional to 210,831.06, 316,246.57 and 61,071.40 is: 91,607.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,831.06 : 316,246.57 = 61,071.40 : x
  2. Step 2: Convert to fraction form
    210,831.06/316,246.57 = 61,071.40/x
  3. Step 3: Cross multiply
    210,831.06x = 316,246.57 × 61,071.40
  4. Step 4: Simplify right side
    210,831.06x = 19,313,620,775.10
  5. Step 5: Solve for x
    x = 19,313,620,775.10/210,831.06
  6. Step 6: Final answer
    x = 91,607.09

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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.