Home / 181,985.20-272,977.80-118,999.60

Finding the Fourth Proportional to 181,985.20, 272,977.80 and 118,999.60

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Solution

The fourth proportional to 181,985.20, 272,977.80 and 118,999.60 is: 178,499.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,985.20 : 272,977.80 = 118,999.60 : x
  2. Step 2: Convert to fraction form
    181,985.20/272,977.80 = 118,999.60/x
  3. Step 3: Cross multiply
    181,985.20x = 272,977.80 × 118,999.60
  4. Step 4: Simplify right side
    181,985.20x = 32,484,249,008.88
  5. Step 5: Solve for x
    x = 32,484,249,008.88/181,985.20
  6. Step 6: Final answer
    x = 178,499.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.