Home / 112,869.84-155,762.14-61,887.24

Finding the Fourth Proportional to 112,869.84, 155,762.14 and 61,887.24

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Solution

The fourth proportional to 112,869.84, 155,762.14 and 61,887.24 is: 85,405.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,869.84 : 155,762.14 = 61,887.24 : x
  2. Step 2: Convert to fraction form
    112,869.84/155,762.14 = 61,887.24/x
  3. Step 3: Cross multiply
    112,869.84x = 155,762.14 × 61,887.24
  4. Step 4: Simplify right side
    112,869.84x = 9,639,688,941.09
  5. Step 5: Solve for x
    x = 9,639,688,941.09/112,869.84
  6. Step 6: Final answer
    x = 85,405.36

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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.