Home / 144,835.16-199,814.31-90,355.23

Finding the Fourth Proportional to 144,835.16, 199,814.31 and 90,355.23

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Solution

The fourth proportional to 144,835.16, 199,814.31 and 90,355.23 is: 124,653.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,835.16 : 199,814.31 = 90,355.23 : x
  2. Step 2: Convert to fraction form
    144,835.16/199,814.31 = 90,355.23/x
  3. Step 3: Cross multiply
    144,835.16x = 199,814.31 × 90,355.23
  4. Step 4: Simplify right side
    144,835.16x = 18,054,267,937.34
  5. Step 5: Solve for x
    x = 18,054,267,937.34/144,835.16
  6. Step 6: Final answer
    x = 124,653.91

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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.