Home / 130,533.34-180,151.86-76,815.76

Finding the Fourth Proportional to 130,533.34, 180,151.86 and 76,815.76

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Solution

The fourth proportional to 130,533.34, 180,151.86 and 76,815.76 is: 106,015.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,533.34 : 180,151.86 = 76,815.76 : x
  2. Step 2: Convert to fraction form
    130,533.34/180,151.86 = 76,815.76/x
  3. Step 3: Cross multiply
    130,533.34x = 180,151.86 × 76,815.76
  4. Step 4: Simplify right side
    130,533.34x = 13,838,502,041.31
  5. Step 5: Solve for x
    x = 13,838,502,041.31/130,533.34
  6. Step 6: Final answer
    x = 106,015.08

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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.