Home / 289,397.95-434,113.31-89,746.72

Finding the Fourth Proportional to 289,397.95, 434,113.31 and 89,746.72

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Solution

The fourth proportional to 289,397.95, 434,113.31 and 89,746.72 is: 134,625.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,397.95 : 434,113.31 = 89,746.72 : x
  2. Step 2: Convert to fraction form
    289,397.95/434,113.31 = 89,746.72/x
  3. Step 3: Cross multiply
    289,397.95x = 434,113.31 × 89,746.72
  4. Step 4: Simplify right side
    289,397.95x = 38,960,244,315.10
  5. Step 5: Solve for x
    x = 38,960,244,315.10/289,397.95
  6. Step 6: Final answer
    x = 134,625.16

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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.