Home / 210,395.04-315,595.35-70,153.71

Finding the Fourth Proportional to 210,395.04, 315,595.35 and 70,153.71

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Solution

The fourth proportional to 210,395.04, 315,595.35 and 70,153.71 is: 105,231.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,395.04 : 315,595.35 = 70,153.71 : x
  2. Step 2: Convert to fraction form
    210,395.04/315,595.35 = 70,153.71/x
  3. Step 3: Cross multiply
    210,395.04x = 315,595.35 × 70,153.71
  4. Step 4: Simplify right side
    210,395.04x = 22,140,184,661.25
  5. Step 5: Solve for x
    x = 22,140,184,661.25/210,395.04
  6. Step 6: Final answer
    x = 105,231.50

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1.5x scale

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.