Home / 130,533.34-180,132.51-76,821.52

Finding the Fourth Proportional to 130,533.34, 180,132.51 and 76,821.52

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Solution

The fourth proportional to 130,533.34, 180,132.51 and 76,821.52 is: 106,011.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,533.34 : 180,132.51 = 76,821.52 : x
  2. Step 2: Convert to fraction form
    130,533.34/180,132.51 = 76,821.52/x
  3. Step 3: Cross multiply
    130,533.34x = 180,132.51 × 76,821.52
  4. Step 4: Simplify right side
    130,533.34x = 13,838,053,219.62
  5. Step 5: Solve for x
    x = 13,838,053,219.62/130,533.34
  6. Step 6: Final answer
    x = 106,011.64

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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.