Home / 145,539.10-200,829.67-81,875.53

Finding the Fourth Proportional to 145,539.10, 200,829.67 and 81,875.53

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Solution

The fourth proportional to 145,539.10, 200,829.67 and 81,875.53 is: 112,980.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,539.10 : 200,829.67 = 81,875.53 : x
  2. Step 2: Convert to fraction form
    145,539.10/200,829.67 = 81,875.53/x
  3. Step 3: Cross multiply
    145,539.10x = 200,829.67 × 81,875.53
  4. Step 4: Simplify right side
    145,539.10x = 16,443,035,670.98
  5. Step 5: Solve for x
    x = 16,443,035,670.98/145,539.10
  6. Step 6: Final answer
    x = 112,980.19

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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.