Home / 210,078.40-314,854.80-104,926.72

Finding the Fourth Proportional to 210,078.40, 314,854.80 and 104,926.72

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Solution

The fourth proportional to 210,078.40, 314,854.80 and 104,926.72 is: 157,258.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,078.40 : 314,854.80 = 104,926.72 : x
  2. Step 2: Convert to fraction form
    210,078.40/314,854.80 = 104,926.72/x
  3. Step 3: Cross multiply
    210,078.40x = 314,854.80 × 104,926.72
  4. Step 4: Simplify right side
    210,078.40x = 33,036,681,440.26
  5. Step 5: Solve for x
    x = 33,036,681,440.26/210,078.40
  6. Step 6: Final answer
    x = 157,258.82

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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.