Home / 129,263.04-178,323.12-75,550.32

Finding the Fourth Proportional to 129,263.04, 178,323.12 and 75,550.32

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Solution

The fourth proportional to 129,263.04, 178,323.12 and 75,550.32 is: 104,224.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,263.04 : 178,323.12 = 75,550.32 : x
  2. Step 2: Convert to fraction form
    129,263.04/178,323.12 = 75,550.32/x
  3. Step 3: Cross multiply
    129,263.04x = 178,323.12 × 75,550.32
  4. Step 4: Simplify right side
    129,263.04x = 13,472,368,779.40
  5. Step 5: Solve for x
    x = 13,472,368,779.40/129,263.04
  6. Step 6: Final answer
    x = 104,224.45

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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.