Home / 99,547.35-137,365.38-61,300.77

Finding the Fourth Proportional to 99,547.35, 137,365.38 and 61,300.77

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Solution

The fourth proportional to 99,547.35, 137,365.38 and 61,300.77 is: 84,588.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,547.35 : 137,365.38 = 61,300.77 : x
  2. Step 2: Convert to fraction form
    99,547.35/137,365.38 = 61,300.77/x
  3. Step 3: Cross multiply
    99,547.35x = 137,365.38 × 61,300.77
  4. Step 4: Simplify right side
    99,547.35x = 8,420,603,565.34
  5. Step 5: Solve for x
    x = 8,420,603,565.34/99,547.35
  6. Step 6: Final answer
    x = 84,588.93

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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.