Home / 130,533.32-180,132.73-72,389.72

Finding the Fourth Proportional to 130,533.32, 180,132.73 and 72,389.72

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Solution

The fourth proportional to 130,533.32, 180,132.73 and 72,389.72 is: 99,896.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,533.32 : 180,132.73 = 72,389.72 : x
  2. Step 2: Convert to fraction form
    130,533.32/180,132.73 = 72,389.72/x
  3. Step 3: Cross multiply
    130,533.32x = 180,132.73 × 72,389.72
  4. Step 4: Simplify right side
    130,533.32x = 13,039,757,617.13
  5. Step 5: Solve for x
    x = 13,039,757,617.13/130,533.32
  6. Step 6: Final answer
    x = 99,896.01

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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.