Home / 130,303.08-179,803.08-72,945.54

Finding the Fourth Proportional to 130,303.08, 179,803.08 and 72,945.54

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Solution

The fourth proportional to 130,303.08, 179,803.08 and 72,945.54 is: 100,656.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,303.08 : 179,803.08 = 72,945.54 : x
  2. Step 2: Convert to fraction form
    130,303.08/179,803.08 = 72,945.54/x
  3. Step 3: Cross multiply
    130,303.08x = 179,803.08 × 72,945.54
  4. Step 4: Simplify right side
    130,303.08x = 13,115,832,764.26
  5. Step 5: Solve for x
    x = 13,115,832,764.26/130,303.08
  6. Step 6: Final answer
    x = 100,656.35

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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.