Home / 102,430.54-141,355.21-59,412.93

Finding the Fourth Proportional to 102,430.54, 141,355.21 and 59,412.93

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Solution

The fourth proportional to 102,430.54, 141,355.21 and 59,412.93 is: 81,990.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,430.54 : 141,355.21 = 59,412.93 : x
  2. Step 2: Convert to fraction form
    102,430.54/141,355.21 = 59,412.93/x
  3. Step 3: Cross multiply
    102,430.54x = 141,355.21 × 59,412.93
  4. Step 4: Simplify right side
    102,430.54x = 8,398,327,100.67
  5. Step 5: Solve for x
    x = 8,398,327,100.67/102,430.54
  6. Step 6: Final answer
    x = 81,990.46

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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.