Home / 152,403.95-210,319.14-84,421.96

Finding the Fourth Proportional to 152,403.95, 210,319.14 and 84,421.96

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Solution

The fourth proportional to 152,403.95, 210,319.14 and 84,421.96 is: 116,503.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,403.95 : 210,319.14 = 84,421.96 : x
  2. Step 2: Convert to fraction form
    152,403.95/210,319.14 = 84,421.96/x
  3. Step 3: Cross multiply
    152,403.95x = 210,319.14 × 84,421.96
  4. Step 4: Simplify right side
    152,403.95x = 17,755,553,602.20
  5. Step 5: Solve for x
    x = 17,755,553,602.20/152,403.95
  6. Step 6: Final answer
    x = 116,503.24

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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.