Home / 130,795.35-180,153.81-100,522.74

Finding the Fourth Proportional to 130,795.35, 180,153.81 and 100,522.74

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Solution

The fourth proportional to 130,795.35, 180,153.81 and 100,522.74 is: 138,457.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,795.35 : 180,153.81 = 100,522.74 : x
  2. Step 2: Convert to fraction form
    130,795.35/180,153.81 = 100,522.74/x
  3. Step 3: Cross multiply
    130,795.35x = 180,153.81 × 100,522.74
  4. Step 4: Simplify right side
    130,795.35x = 18,109,554,602.64
  5. Step 5: Solve for x
    x = 18,109,554,602.64/130,795.35
  6. Step 6: Final answer
    x = 138,457.17

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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.