Home / 209,816.60-314,756.18-74,870.16

Finding the Fourth Proportional to 209,816.60, 314,756.18 and 74,870.16

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Solution

The fourth proportional to 209,816.60, 314,756.18 and 74,870.16 is: 112,316.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,816.60 : 314,756.18 = 74,870.16 : x
  2. Step 2: Convert to fraction form
    209,816.60/314,756.18 = 74,870.16/x
  3. Step 3: Cross multiply
    209,816.60x = 314,756.18 × 74,870.16
  4. Step 4: Simplify right side
    209,816.60x = 23,565,845,557.59
  5. Step 5: Solve for x
    x = 23,565,845,557.59/209,816.60
  6. Step 6: Final answer
    x = 112,316.40

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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.