Home / 209,343.32-314,009.16-67,187.46

Finding the Fourth Proportional to 209,343.32, 314,009.16 and 67,187.46

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Solution

The fourth proportional to 209,343.32, 314,009.16 and 67,187.46 is: 100,779.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,343.32 : 314,009.16 = 67,187.46 : x
  2. Step 2: Convert to fraction form
    209,343.32/314,009.16 = 67,187.46/x
  3. Step 3: Cross multiply
    209,343.32x = 314,009.16 × 67,187.46
  4. Step 4: Simplify right side
    209,343.32x = 21,097,477,036.41
  5. Step 5: Solve for x
    x = 21,097,477,036.41/209,343.32
  6. Step 6: Final answer
    x = 100,779.32

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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.