Home / 154,987.13-213,827.23-101,303.14

Finding the Fourth Proportional to 154,987.13, 213,827.23 and 101,303.14

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Solution

The fourth proportional to 154,987.13, 213,827.23 and 101,303.14 is: 139,762.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,987.13 : 213,827.23 = 101,303.14 : x
  2. Step 2: Convert to fraction form
    154,987.13/213,827.23 = 101,303.14/x
  3. Step 3: Cross multiply
    154,987.13x = 213,827.23 × 101,303.14
  4. Step 4: Simplify right side
    154,987.13x = 21,661,369,816.50
  5. Step 5: Solve for x
    x = 21,661,369,816.50/154,987.13
  6. Step 6: Final answer
    x = 139,762.38

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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.