Home / 103,518.07-142,860.00-58,210.31

Finding the Fourth Proportional to 103,518.07, 142,860.00 and 58,210.31

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Solution

The fourth proportional to 103,518.07, 142,860.00 and 58,210.31 is: 80,333.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,518.07 : 142,860.00 = 58,210.31 : x
  2. Step 2: Convert to fraction form
    103,518.07/142,860.00 = 58,210.31/x
  3. Step 3: Cross multiply
    103,518.07x = 142,860.00 × 58,210.31
  4. Step 4: Simplify right side
    103,518.07x = 8,315,924,741.07
  5. Step 5: Solve for x
    x = 8,315,924,741.07/103,518.07
  6. Step 6: Final answer
    x = 80,333.08

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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.