Home / 130,505.76-180,094.93-76,054.46

Finding the Fourth Proportional to 130,505.76, 180,094.93 and 76,054.46

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Solution

The fourth proportional to 130,505.76, 180,094.93 and 76,054.46 is: 104,953.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,505.76 : 180,094.93 = 76,054.46 : x
  2. Step 2: Convert to fraction form
    130,505.76/180,094.93 = 76,054.46/x
  3. Step 3: Cross multiply
    130,505.76x = 180,094.93 × 76,054.46
  4. Step 4: Simplify right side
    130,505.76x = 13,697,022,649.89
  5. Step 5: Solve for x
    x = 13,697,022,649.89/130,505.76
  6. Step 6: Final answer
    x = 104,953.40

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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.