Home / 130,436.58-180,006.93-73,078.32

Finding the Fourth Proportional to 130,436.58, 180,006.93 and 73,078.32

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Solution

The fourth proportional to 130,436.58, 180,006.93 and 73,078.32 is: 100,850.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,436.58 : 180,006.93 = 73,078.32 : x
  2. Step 2: Convert to fraction form
    130,436.58/180,006.93 = 73,078.32/x
  3. Step 3: Cross multiply
    130,436.58x = 180,006.93 × 73,078.32
  4. Step 4: Simplify right side
    130,436.58x = 13,154,604,032.76
  5. Step 5: Solve for x
    x = 13,154,604,032.76/130,436.58
  6. Step 6: Final answer
    x = 100,850.57

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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.