Home / 145,488.04-200,750.35-81,813.53

Finding the Fourth Proportional to 145,488.04, 200,750.35 and 81,813.53

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Solution

The fourth proportional to 145,488.04, 200,750.35 and 81,813.53 is: 112,889.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,488.04 : 200,750.35 = 81,813.53 : x
  2. Step 2: Convert to fraction form
    145,488.04/200,750.35 = 81,813.53/x
  3. Step 3: Cross multiply
    145,488.04x = 200,750.35 × 81,813.53
  4. Step 4: Simplify right side
    145,488.04x = 16,424,094,782.24
  5. Step 5: Solve for x
    x = 16,424,094,782.24/145,488.04
  6. Step 6: Final answer
    x = 112,889.66

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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.