Home / 145,386.19-218,079.21-45,554.23

Finding the Fourth Proportional to 145,386.19, 218,079.21 and 45,554.23

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Solution

The fourth proportional to 145,386.19, 218,079.21 and 45,554.23 is: 68,331.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,386.19 : 218,079.21 = 45,554.23 : x
  2. Step 2: Convert to fraction form
    145,386.19/218,079.21 = 45,554.23/x
  3. Step 3: Cross multiply
    145,386.19x = 218,079.21 × 45,554.23
  4. Step 4: Simplify right side
    145,386.19x = 9,934,429,400.16
  5. Step 5: Solve for x
    x = 9,934,429,400.16/145,386.19
  6. Step 6: Final answer
    x = 68,331.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.