Home / 208,136.04-287,228.58-112,642.68

Finding the Fourth Proportional to 208,136.04, 287,228.58 and 112,642.68

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Solution

The fourth proportional to 208,136.04, 287,228.58 and 112,642.68 is: 155,447.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,136.04 : 287,228.58 = 112,642.68 : x
  2. Step 2: Convert to fraction form
    208,136.04/287,228.58 = 112,642.68/x
  3. Step 3: Cross multiply
    208,136.04x = 287,228.58 × 112,642.68
  4. Step 4: Simplify right side
    208,136.04x = 32,354,197,023.79
  5. Step 5: Solve for x
    x = 32,354,197,023.79/208,136.04
  6. Step 6: Final answer
    x = 155,447.36

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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.