Home / 132,907.32-183,411.96-72,478.08

Finding the Fourth Proportional to 132,907.32, 183,411.96 and 72,478.08

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Solution

The fourth proportional to 132,907.32, 183,411.96 and 72,478.08 is: 100,019.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,907.32 : 183,411.96 = 72,478.08 : x
  2. Step 2: Convert to fraction form
    132,907.32/183,411.96 = 72,478.08/x
  3. Step 3: Cross multiply
    132,907.32x = 183,411.96 × 72,478.08
  4. Step 4: Simplify right side
    132,907.32x = 13,293,346,709.84
  5. Step 5: Solve for x
    x = 13,293,346,709.84/132,907.32
  6. Step 6: Final answer
    x = 100,019.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.