Home / 145,914.48-218,779.38-61,631.28

Finding the Fourth Proportional to 145,914.48, 218,779.38 and 61,631.28

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Solution

The fourth proportional to 145,914.48, 218,779.38 and 61,631.28 is: 92,407.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,914.48 : 218,779.38 = 61,631.28 : x
  2. Step 2: Convert to fraction form
    145,914.48/218,779.38 = 61,631.28/x
  3. Step 3: Cross multiply
    145,914.48x = 218,779.38 × 61,631.28
  4. Step 4: Simplify right side
    145,914.48x = 13,483,653,227.01
  5. Step 5: Solve for x
    x = 13,483,653,227.01/145,914.48
  6. Step 6: Final answer
    x = 92,407.92

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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.