Home / 145,386.37-218,079.69-45,547.39

Finding the Fourth Proportional to 145,386.37, 218,079.69 and 45,547.39

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Solution

The fourth proportional to 145,386.37, 218,079.69 and 45,547.39 is: 68,321.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,386.37 : 218,079.69 = 45,547.39 : x
  2. Step 2: Convert to fraction form
    145,386.37/218,079.69 = 45,547.39/x
  3. Step 3: Cross multiply
    145,386.37x = 218,079.69 × 45,547.39
  4. Step 4: Simplify right side
    145,386.37x = 9,932,960,691.51
  5. Step 5: Solve for x
    x = 9,932,960,691.51/145,386.37
  6. Step 6: Final answer
    x = 68,321.13

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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.