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Finding the Fourth Proportional to 130,549.50, 180,159.41 and 70,933.50

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Solution

The fourth proportional to 130,549.50, 180,159.41 and 70,933.50 is: 97,888.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,549.50 : 180,159.41 = 70,933.50 : x
  2. Step 2: Convert to fraction form
    130,549.50/180,159.41 = 70,933.50/x
  3. Step 3: Cross multiply
    130,549.50x = 180,159.41 × 70,933.50
  4. Step 4: Simplify right side
    130,549.50x = 12,779,337,509.24
  5. Step 5: Solve for x
    x = 12,779,337,509.24/130,549.50
  6. Step 6: Final answer
    x = 97,888.83

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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.