Home / 208,110.48-287,192.70-112,617.18

Finding the Fourth Proportional to 208,110.48, 287,192.70 and 112,617.18

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Solution

The fourth proportional to 208,110.48, 287,192.70 and 112,617.18 is: 155,411.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,110.48 : 287,192.70 = 112,617.18 : x
  2. Step 2: Convert to fraction form
    208,110.48/287,192.70 = 112,617.18/x
  3. Step 3: Cross multiply
    208,110.48x = 287,192.70 × 112,617.18
  4. Step 4: Simplify right side
    208,110.48x = 32,342,831,990.59
  5. Step 5: Solve for x
    x = 32,342,831,990.59/208,110.48
  6. Step 6: Final answer
    x = 155,411.84

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1.5x scale

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.