Home / 156,024.79-215,313.55-84,404.63

Finding the Fourth Proportional to 156,024.79, 215,313.55 and 84,404.63

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Solution

The fourth proportional to 156,024.79, 215,313.55 and 84,404.63 is: 116,478.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,024.79 : 215,313.55 = 84,404.63 : x
  2. Step 2: Convert to fraction form
    156,024.79/215,313.55 = 84,404.63/x
  3. Step 3: Cross multiply
    156,024.79x = 215,313.55 × 84,404.63
  4. Step 4: Simplify right side
    156,024.79x = 18,173,460,521.74
  5. Step 5: Solve for x
    x = 18,173,460,521.74/156,024.79
  6. Step 6: Final answer
    x = 116,478.03

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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.